This thread has a lot of good points. Their was an incident here a few years ago where a LEO was shot during a struggle during a traffic stop, he was able to call for help before passing out. A passer by noticed the officer laying on the side of the highway and stopped to try and render assistance. Well bad timing because not 30 secs. after they nelt down over the officer that backup arrived. The pedestrian was shot 2 times by the other LEO's thinking he was the perp. It was a case of mistaken identity. In situations like these adrenaline can sometimes cloud judgement, no matter how much training you recieve. Always be sure of your target and their intent. It's hard to put the bullet back in the gun once it's fired. Thankfully both parties involved survived the shooting.